Integrand size = 22, antiderivative size = 262 \[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=-\frac {3 i a^2 \arctan (a x)^2}{2 c}-\frac {3 a \arctan (a x)^2}{2 c x}-\frac {a^2 \arctan (a x)^3}{2 c}-\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}+\frac {3 a^2 \arctan (a x) \log \left (2-\frac {2}{1-i a x}\right )}{c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}-\frac {3 i a^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}+\frac {3 i a^2 \arctan (a x)^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 a^2 \arctan (a x) \operatorname {PolyLog}\left (3,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 i a^2 \operatorname {PolyLog}\left (4,-1+\frac {2}{1-i a x}\right )}{4 c} \]
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Time = 0.38 (sec) , antiderivative size = 262, normalized size of antiderivative = 1.00, number of steps used = 13, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.409, Rules used = {5038, 4946, 5044, 4988, 2497, 5004, 5112, 5116, 6745} \[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {3 i a^2 \arctan (a x)^2 \operatorname {PolyLog}\left (2,\frac {2}{1-i a x}-1\right )}{2 c}-\frac {3 a^2 \arctan (a x) \operatorname {PolyLog}\left (3,\frac {2}{1-i a x}-1\right )}{2 c}+\frac {i a^2 \arctan (a x)^4}{4 c}-\frac {a^2 \arctan (a x)^3}{2 c}-\frac {3 i a^2 \arctan (a x)^2}{2 c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}+\frac {3 a^2 \arctan (a x) \log \left (2-\frac {2}{1-i a x}\right )}{c}-\frac {3 i a^2 \operatorname {PolyLog}\left (2,\frac {2}{1-i a x}-1\right )}{2 c}-\frac {3 i a^2 \operatorname {PolyLog}\left (4,\frac {2}{1-i a x}-1\right )}{4 c}-\frac {\arctan (a x)^3}{2 c x^2}-\frac {3 a \arctan (a x)^2}{2 c x} \]
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Rule 2497
Rule 4946
Rule 4988
Rule 5004
Rule 5038
Rule 5044
Rule 5112
Rule 5116
Rule 6745
Rubi steps \begin{align*} \text {integral}& = -\left (a^2 \int \frac {\arctan (a x)^3}{x \left (c+a^2 c x^2\right )} \, dx\right )+\frac {\int \frac {\arctan (a x)^3}{x^3} \, dx}{c} \\ & = -\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}+\frac {(3 a) \int \frac {\arctan (a x)^2}{x^2 \left (1+a^2 x^2\right )} \, dx}{2 c}-\frac {\left (i a^2\right ) \int \frac {\arctan (a x)^3}{x (i+a x)} \, dx}{c} \\ & = -\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}+\frac {(3 a) \int \frac {\arctan (a x)^2}{x^2} \, dx}{2 c}-\frac {\left (3 a^3\right ) \int \frac {\arctan (a x)^2}{1+a^2 x^2} \, dx}{2 c}+\frac {\left (3 a^3\right ) \int \frac {\arctan (a x)^2 \log \left (2-\frac {2}{1-i a x}\right )}{1+a^2 x^2} \, dx}{c} \\ & = -\frac {3 a \arctan (a x)^2}{2 c x}-\frac {a^2 \arctan (a x)^3}{2 c}-\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}+\frac {3 i a^2 \arctan (a x)^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}+\frac {\left (3 a^2\right ) \int \frac {\arctan (a x)}{x \left (1+a^2 x^2\right )} \, dx}{c}-\frac {\left (3 i a^3\right ) \int \frac {\arctan (a x) \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{1+a^2 x^2} \, dx}{c} \\ & = -\frac {3 i a^2 \arctan (a x)^2}{2 c}-\frac {3 a \arctan (a x)^2}{2 c x}-\frac {a^2 \arctan (a x)^3}{2 c}-\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}+\frac {3 i a^2 \arctan (a x)^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 a^2 \arctan (a x) \operatorname {PolyLog}\left (3,-1+\frac {2}{1-i a x}\right )}{2 c}+\frac {\left (3 i a^2\right ) \int \frac {\arctan (a x)}{x (i+a x)} \, dx}{c}+\frac {\left (3 a^3\right ) \int \frac {\operatorname {PolyLog}\left (3,-1+\frac {2}{1-i a x}\right )}{1+a^2 x^2} \, dx}{2 c} \\ & = -\frac {3 i a^2 \arctan (a x)^2}{2 c}-\frac {3 a \arctan (a x)^2}{2 c x}-\frac {a^2 \arctan (a x)^3}{2 c}-\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}+\frac {3 a^2 \arctan (a x) \log \left (2-\frac {2}{1-i a x}\right )}{c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}+\frac {3 i a^2 \arctan (a x)^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 a^2 \arctan (a x) \operatorname {PolyLog}\left (3,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 i a^2 \operatorname {PolyLog}\left (4,-1+\frac {2}{1-i a x}\right )}{4 c}-\frac {\left (3 a^3\right ) \int \frac {\log \left (2-\frac {2}{1-i a x}\right )}{1+a^2 x^2} \, dx}{c} \\ & = -\frac {3 i a^2 \arctan (a x)^2}{2 c}-\frac {3 a \arctan (a x)^2}{2 c x}-\frac {a^2 \arctan (a x)^3}{2 c}-\frac {\arctan (a x)^3}{2 c x^2}+\frac {i a^2 \arctan (a x)^4}{4 c}+\frac {3 a^2 \arctan (a x) \log \left (2-\frac {2}{1-i a x}\right )}{c}-\frac {a^2 \arctan (a x)^3 \log \left (2-\frac {2}{1-i a x}\right )}{c}-\frac {3 i a^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}+\frac {3 i a^2 \arctan (a x)^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 a^2 \arctan (a x) \operatorname {PolyLog}\left (3,-1+\frac {2}{1-i a x}\right )}{2 c}-\frac {3 i a^2 \operatorname {PolyLog}\left (4,-1+\frac {2}{1-i a x}\right )}{4 c} \\ \end{align*}
Time = 0.40 (sec) , antiderivative size = 189, normalized size of antiderivative = 0.72 \[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {i a^2 \left (\pi ^4-96 \arctan (a x)^2+\frac {96 i \arctan (a x)^2}{a x}+\frac {32 i \left (1+a^2 x^2\right ) \arctan (a x)^3}{a^2 x^2}-16 \arctan (a x)^4+64 i \arctan (a x)^3 \log \left (1-e^{-2 i \arctan (a x)}\right )-192 i \arctan (a x) \log \left (1-e^{2 i \arctan (a x)}\right )-96 \arctan (a x)^2 \operatorname {PolyLog}\left (2,e^{-2 i \arctan (a x)}\right )-96 \operatorname {PolyLog}\left (2,e^{2 i \arctan (a x)}\right )+96 i \arctan (a x) \operatorname {PolyLog}\left (3,e^{-2 i \arctan (a x)}\right )+48 \operatorname {PolyLog}\left (4,e^{-2 i \arctan (a x)}\right )\right )}{64 c} \]
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Time = 91.86 (sec) , antiderivative size = 441, normalized size of antiderivative = 1.68
method | result | size |
derivativedivides | \(a^{2} \left (-\frac {6 i \operatorname {polylog}\left (4, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {\arctan \left (a x \right )^{2} \left (-i \arctan \left (a x \right )-3 i a x +x \arctan \left (a x \right ) a \right ) \left (a x +i\right )}{2 c \,a^{2} x^{2}}+\frac {3 i \arctan \left (a x \right )^{2} \operatorname {polylog}\left (2, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {\arctan \left (a x \right )^{3} \ln \left (1-\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {3 i \operatorname {polylog}\left (2, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {6 \arctan \left (a x \right ) \operatorname {polylog}\left (3, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}+\frac {3 i \arctan \left (a x \right )^{2} \operatorname {polylog}\left (2, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {\arctan \left (a x \right )^{3} \ln \left (\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}+1\right )}{c}-\frac {6 i \operatorname {polylog}\left (4, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {6 \arctan \left (a x \right ) \operatorname {polylog}\left (3, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {3 i \operatorname {polylog}\left (2, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}+\frac {i \arctan \left (a x \right )^{4}}{4 c}+\frac {3 \arctan \left (a x \right ) \ln \left (1-\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {3 i \arctan \left (a x \right )^{2}}{c}+\frac {3 \arctan \left (a x \right ) \ln \left (\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}+1\right )}{c}\right )\) | \(441\) |
default | \(a^{2} \left (-\frac {6 i \operatorname {polylog}\left (4, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {\arctan \left (a x \right )^{2} \left (-i \arctan \left (a x \right )-3 i a x +x \arctan \left (a x \right ) a \right ) \left (a x +i\right )}{2 c \,a^{2} x^{2}}+\frac {3 i \arctan \left (a x \right )^{2} \operatorname {polylog}\left (2, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {\arctan \left (a x \right )^{3} \ln \left (1-\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {3 i \operatorname {polylog}\left (2, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {6 \arctan \left (a x \right ) \operatorname {polylog}\left (3, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}+\frac {3 i \arctan \left (a x \right )^{2} \operatorname {polylog}\left (2, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {\arctan \left (a x \right )^{3} \ln \left (\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}+1\right )}{c}-\frac {6 i \operatorname {polylog}\left (4, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {6 \arctan \left (a x \right ) \operatorname {polylog}\left (3, -\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {3 i \operatorname {polylog}\left (2, \frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}+\frac {i \arctan \left (a x \right )^{4}}{4 c}+\frac {3 \arctan \left (a x \right ) \ln \left (1-\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}\right )}{c}-\frac {3 i \arctan \left (a x \right )^{2}}{c}+\frac {3 \arctan \left (a x \right ) \ln \left (\frac {i a x +1}{\sqrt {a^{2} x^{2}+1}}+1\right )}{c}\right )\) | \(441\) |
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\[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int { \frac {\arctan \left (a x\right )^{3}}{{\left (a^{2} c x^{2} + c\right )} x^{3}} \,d x } \]
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\[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {\int \frac {\operatorname {atan}^{3}{\left (a x \right )}}{a^{2} x^{5} + x^{3}}\, dx}{c} \]
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\[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int { \frac {\arctan \left (a x\right )^{3}}{{\left (a^{2} c x^{2} + c\right )} x^{3}} \,d x } \]
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\[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int { \frac {\arctan \left (a x\right )^{3}}{{\left (a^{2} c x^{2} + c\right )} x^{3}} \,d x } \]
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Timed out. \[ \int \frac {\arctan (a x)^3}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int \frac {{\mathrm {atan}\left (a\,x\right )}^3}{x^3\,\left (c\,a^2\,x^2+c\right )} \,d x \]
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